Samsung launched its first foldable phone in 2019. Seven years and multiple iterations later, the Galaxy Z Fold 8 and Z Flip 8 arrived with titanium reinforcements, thinner profiles and claims of vastly improved longevity. Yet one flaw remains impossible to ignore. The crease.
Run a finger across the inner display of the latest models and the familiar bump-dip-bump sensation greets you immediately. Open the device under certain lighting and a faint line stares back. After a week of regular use that line grows more obvious. This isn’t speculation. It’s the daily experience reported by users and confirmed in hands-on testing.
The Persistent Visual and Tactile Flaw
Tashreef Shareef tested the Z Fold 8 for MakeUseOf. On day one the crease looked nearly invisible thanks to the new Flex Titanium layer. A titanium-alloy film and supporting plate sit beneath the OLED panel. The improvement over the Z Fold 7 appeared clear in initial photos. But the tactile feedback stayed identical. And within days the crease became visibly more pronounced under regular use.
“The crease still wins,” Shareef wrote. The hinge mechanism itself did not change this generation. Flex Titanium functions primarily as a visual fix. It reduces how the fold appears at first glance. It does not eliminate the mechanical reality of repeated bending at the same point.
Samsung Display has poured resources into solving this. At CES 2026 the company showed a prototype OLED with a laser-drilled metal plate designed to distribute stress more evenly. Earlier demonstrations at MWC 2025 hinted at crease-free panels. Production versions have not yet matched those prototypes. Competitors such as Oppo and Xiaomi have achieved flatter results in some reviews. Samsung’s approach still trails on this specific metric.
The issue runs deeper than cosmetics. Creases can evolve. Some owners of earlier Z Fold models report the line deepening over months. Others notice no further change after a year. Variability depends on usage patterns, temperature exposure and even how the phone sits in a pocket. No neat aging schedule exists. One reviewer cited in iFixit’s analysis saw the crease on a Z Fold 8 grow more visible after just seven days. It stayed cosmetic. Others have experienced black lines, dead pixels or touch issues at the fold after extended periods.
But the crease represents only part of the story. Durability concerns extend to the hinge itself. Fine particles pose a serious threat.
iFixit tore down the Galaxy Z Fold 8 in August 2026 and delivered a sobering assessment. The device carries an IP48 rating. It withstands water immersion but offers no protection against particles smaller than one millimeter. Dust, sand and pocket lint slip through gaps in the hinge mechanism. Testers introduced UV-reactive powder measuring as small as 0.04 millimeters. After repeated opening and closing the hinge produced grinding noises. The phone stopped opening and closing normally.
“After working the Fold 8 open and closed, the hinge started making truly awful crunching and grinding noises, and the phone stopped opening normally,” the iFixit team reported in their detailed teardown analysis. The main electronics stayed clean. The hinge assembly itself became caked with debris. Samsung has historically treated the hinge and inner display as a single replacement part. Repairing one often means replacing both. That reality drives high costs and low repairability scores. iFixit gave the Z Fold 8 a provisional 4 out of 10.
The Verge covered the same teardown and noted that this vulnerability has followed Samsung foldables for years. Their report highlighted competitors such as Google’s Pixel 10 Pro Fold and Honor’s Magic V6 that achieved full IP6X dust resistance. Samsung lags here. Pocket lint remains a genuine risk for users who carry the phone unprotected.
Yet progress exists. Samsung doubled the official fold rating with the Z Fold 7 to 500,000 cycles. The Z Fold 8 builds on that foundation with the Armor FlexHinge and Flex Titanium structure. Independent tests from JerryRigEverything showed the standard Z Fold 8 surviving aggressive bend tests that broke previous rivals. The device flexed substantially when bent backward but did not crack the display on the first attempt. The Ultra variant proved more fragile under extreme pressure, with display failure on the second bend.
These results matter. A phone rated for 500,000 folds equates to roughly a decade of average daily use. Many consumers will never approach that limit. But real-world variables complicate the picture. Heat, drops, debris and manufacturing inconsistencies can accelerate wear. One stress test on an earlier model revealed creaking hinges at 46,000 folds and speaker failure by 175,000. Such outcomes remain outliers. They fuel hesitation.
Repair costs amplify the risk. Replacing the inner display and hinge assembly often exceeds $1,000. Samsung offers one free screen protector replacement in the first year. After that users pay modest fees for protectors but face steep bills for structural damage. This economic reality clashes with the premium pricing. The Z Fold 8 starts near $1,900. Owners expect flagship-level resilience.
Software has improved. Multitasking features feel more polished. Battery life has grown. Cameras deliver stronger results. The hardware foundation, however, still carries reminders of its experimental origins. The crease. The dust vulnerability. The expensive repairs.
And so the conversation continues. Samsung has narrowed the gap. The latest foldables weigh less, fold tighter and resist damage better than their predecessors. They survive drops and bends that would have destroyed early models. But the core mechanical compromises have not vanished entirely.
Recent coverage underscores this mixed picture. On the same day the original MakeUseOf piece published, PCQuest argued that engineering has largely caught up on durability yet adoption remains slow due to price, repair costs and limited software differentiation. The hinge problem may be mostly solved for many users. The perception problem lingers.
Buyers who prioritize a large canvas for productivity often accept the trade-offs. Others wait for the crease to disappear completely or for dust resistance to match slab phones. Samsung continues to iterate. New patents point to tighter hinge mechanisms, patterned glass cuts to prevent cracking and better stress distribution. Prototypes shown in labs look promising.
The eighth generation delivers meaningful gains. It still falls short of perfection. That gap between marketing claims and lived experience explains why many industry observers continue to watch closely. The technology has matured. The last visible reminders of its youth refuse to fade quietly.